257 lines
6.9 KiB
Rust
257 lines
6.9 KiB
Rust
use crate::keywords::helpers;
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use crate::{
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compilation::{context::CompilationContext, JSONSchema},
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error::{error, no_error, ErrorIterator, ValidationError},
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keywords::CompilationResult,
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validator::Validate,
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};
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use serde_json::{Map, Number, Value};
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use std::f64::EPSILON;
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struct ConstArrayValidator {
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value: Vec<Value>,
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}
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impl ConstArrayValidator {
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#[inline]
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pub(crate) fn compile(value: &[Value]) -> CompilationResult {
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Ok(Box::new(ConstArrayValidator {
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value: value.to_vec(),
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}))
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}
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}
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impl Validate for ConstArrayValidator {
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#[inline]
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fn validate<'a>(&self, schema: &'a JSONSchema, instance: &'a Value) -> ErrorIterator<'a> {
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if self.is_valid(schema, instance) {
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no_error()
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} else {
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error(ValidationError::constant_array(instance, &self.value))
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}
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}
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#[inline]
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fn is_valid(&self, _: &JSONSchema, instance: &Value) -> bool {
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if let Value::Array(instance_value) = instance {
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helpers::equal_arrays(&self.value, instance_value)
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} else {
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false
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}
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}
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}
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impl ToString for ConstArrayValidator {
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fn to_string(&self) -> String {
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format!(
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"const: [{}]",
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self.value
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.iter()
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.map(ToString::to_string)
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.collect::<Vec<_>>()
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.join(", ")
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)
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}
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}
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struct ConstBooleanValidator {
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value: bool,
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}
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impl ConstBooleanValidator {
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#[inline]
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pub(crate) fn compile(value: bool) -> CompilationResult {
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Ok(Box::new(ConstBooleanValidator { value }))
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}
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}
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impl Validate for ConstBooleanValidator {
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#[inline]
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fn validate<'a>(&self, schema: &'a JSONSchema, instance: &'a Value) -> ErrorIterator<'a> {
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if self.is_valid(schema, instance) {
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no_error()
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} else {
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error(ValidationError::constant_boolean(instance, self.value))
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}
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}
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#[inline]
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fn is_valid(&self, _: &JSONSchema, instance: &Value) -> bool {
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if let Value::Bool(instance_value) = instance {
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&self.value == instance_value
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} else {
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false
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}
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}
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}
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impl ToString for ConstBooleanValidator {
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fn to_string(&self) -> String {
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format!("const: {}", self.value)
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}
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}
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struct ConstNullValidator {}
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impl ConstNullValidator {
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#[inline]
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pub(crate) fn compile() -> CompilationResult {
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Ok(Box::new(ConstNullValidator {}))
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}
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}
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impl Validate for ConstNullValidator {
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#[inline]
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fn validate<'a>(&self, schema: &'a JSONSchema, instance: &'a Value) -> ErrorIterator<'a> {
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if self.is_valid(schema, instance) {
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no_error()
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} else {
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error(ValidationError::constant_null(instance))
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}
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}
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#[inline]
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fn is_valid(&self, _: &JSONSchema, instance: &Value) -> bool {
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instance.is_null()
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}
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}
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impl ToString for ConstNullValidator {
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fn to_string(&self) -> String {
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format!("const: {}", Value::Null)
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}
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}
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struct ConstNumberValidator {
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// This is saved in order to ensure that the error message is not altered by precision loss
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original_value: Number,
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value: f64,
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}
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impl ConstNumberValidator {
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#[inline]
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pub(crate) fn compile(original_value: &Number) -> CompilationResult {
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Ok(Box::new(ConstNumberValidator {
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original_value: original_value.clone(),
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value: original_value
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.as_f64()
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.expect("A JSON number will always be representable as f64"),
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}))
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}
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}
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impl Validate for ConstNumberValidator {
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fn validate<'a>(&self, schema: &'a JSONSchema, instance: &'a Value) -> ErrorIterator<'a> {
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if self.is_valid(schema, instance) {
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no_error()
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} else {
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error(ValidationError::constant_number(
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instance,
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&self.original_value,
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))
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}
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}
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fn is_valid(&self, _: &JSONSchema, instance: &Value) -> bool {
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if let Value::Number(item) = instance {
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(self.value - item.as_f64().expect("Always representable as f64")).abs() < EPSILON
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} else {
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false
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}
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}
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}
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impl ToString for ConstNumberValidator {
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fn to_string(&self) -> String {
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format!("const: {}", self.original_value)
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}
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}
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pub(crate) struct ConstObjectValidator {
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value: Map<String, Value>,
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}
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impl ConstObjectValidator {
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#[inline]
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pub(crate) fn compile(value: &Map<String, Value>) -> CompilationResult {
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Ok(Box::new(ConstObjectValidator {
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value: value.clone(),
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}))
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}
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}
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impl Validate for ConstObjectValidator {
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fn validate<'a>(&self, schema: &'a JSONSchema, instance: &'a Value) -> ErrorIterator<'a> {
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if self.is_valid(schema, instance) {
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no_error()
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} else {
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error(ValidationError::constant_object(instance, &self.value))
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}
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}
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fn is_valid(&self, _: &JSONSchema, instance: &Value) -> bool {
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if let Value::Object(item) = instance {
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helpers::equal_objects(&self.value, item)
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} else {
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false
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}
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}
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}
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impl ToString for ConstObjectValidator {
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fn to_string(&self) -> String {
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format!(
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"const: {{{}}}",
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self.value
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.iter()
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.map(|(key, value)| format!(r#""{}":{}"#, key, value))
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.collect::<Vec<_>>()
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.join(", ")
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)
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}
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}
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pub(crate) struct ConstStringValidator {
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value: String,
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}
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impl ConstStringValidator {
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#[inline]
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pub(crate) fn compile(value: &str) -> CompilationResult {
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Ok(Box::new(ConstStringValidator {
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value: value.to_string(),
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}))
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}
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}
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impl Validate for ConstStringValidator {
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fn validate<'a>(&self, schema: &'a JSONSchema, instance: &'a Value) -> ErrorIterator<'a> {
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if self.is_valid(schema, instance) {
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no_error()
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} else {
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error(ValidationError::constant_string(instance, &self.value))
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}
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}
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fn is_valid(&self, _: &JSONSchema, instance: &Value) -> bool {
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if let Value::String(item) = instance {
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&self.value == item
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} else {
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false
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}
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}
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}
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impl ToString for ConstStringValidator {
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fn to_string(&self) -> String {
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format!("const: {}", self.value)
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}
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}
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#[inline]
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pub(crate) fn compile(
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_: &Map<String, Value>,
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schema: &Value,
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_: &CompilationContext,
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) -> Option<CompilationResult> {
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match schema {
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Value::Array(items) => Some(ConstArrayValidator::compile(items)),
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Value::Bool(item) => Some(ConstBooleanValidator::compile(*item)),
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Value::Null => Some(ConstNullValidator::compile()),
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Value::Number(item) => Some(ConstNumberValidator::compile(item)),
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Value::Object(map) => Some(ConstObjectValidator::compile(map)),
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Value::String(string) => Some(ConstStringValidator::compile(string)),
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}
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}
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